WO2013038786A1

WO2013038786A1 - Vehicle turn signal switch device

Info

Publication number: WO2013038786A1
Application number: PCT/JP2012/067447
Authority: WO
Inventors: 島田　昌彦; 雅丞浦川
Original assignee: 本田技研工業株式会社
Priority date: 2011-09-13
Filing date: 2012-07-09
Publication date: 2013-03-21
Also published as: IN2014CN02694A; CN103826924A; JP5617043B2; CN103826924B; EP2756991A4; EP2756991A1; JPWO2013038786A1; US9221391B2; US20150137964A1; BR112014005982A2

Abstract

Disclosed is a vehicle turn signal switch device whereby the production of knocking sounds by a cancellation pin (42) when a steering wheel (11) is turned in the direction of a turn signal is suppressed. A turn signal switch device (16) comprises a fixed member (21) and a movable plate (22). The cancellation pin (42), which is supported by the fixed member (21) and the movable plate (22) in such a manner that the cancellation pin can swing and move forward and backward relative to a cancellation cam (41), comprises a sliding-contact surface (51) that is in sliding contact with the fixed member (21). The cancellation pin (42) is biased by a return spring (45) in the direction (A1) of the cancellation cam (41) and in the direction (A2) of the sliding contact of the sliding-contact surface (51) with the fixed member (21).

Description

Turn signal switch device for vehicles

The present invention relates to a vehicle turn signal switch device.

The vehicle turn signal switch device has a structure in which the cancel pin is returned to the neutral position by the cancel cam by returning the steering wheel to the turn signal cancel direction. Such a turn signal switch device is known from Patent Document 1, for example.

The turn signal switch device known from Patent Document 1 includes a fixed member located near the steering shaft, a movable plate with a switch supported on the fixed member so as to be swingable, an operation lever for operating the movable plate, And a cancel mechanism. The cancel mechanism includes a cancel cam that can rotate as the steering shaft rotates, and a cancel pin that is supported by the fixed member and the movable platen. The cancel pin is urged in a direction toward the cancel cam by a return spring composed of a leaf spring.

Furthermore, the cancel pin has a first shaft supported by the guide groove of the fixed member and a second shaft supported by the cam groove of the movable platen. The guide groove is formed in an elongated shape toward the cancel pin, and is a groove that supports the first shaft while guiding the first shaft so that the cancel pin can swing and can move forward and backward toward the cancel cam. The cam groove is a guide groove that guides the second shaft so that the cancel pin is displaced with respect to the cancel cam when the movable plate swings.

When the movable plate is swung in the left or right turn direction by the operation lever, the cancel cam is displaced into the rotation path of the cancel cam while being guided by the guide groove and the cam groove. At this time, the first shaft is biased by the leaf spring, so that the first shaft is displaced to the end of the guide groove closer to the cancel cam. When the steering wheel is steered in the direction of the turn signal, the cancel pin is pushed by the cancel cam, swings and slightly moves backward (so-called swinging). Thereafter, the cancel pin is displaced again into the rotation locus of the cancel cam by the biasing force of the leaf spring. By the urging force at this time, the first shaft strikes (impacts) the groove end closer to the cancel pin in the guide groove, so that a hitting sound can be generated. If the hitting sound is generated each time the air is swung, it may cause a noise in the passenger compartment, which is disadvantageous in improving the comfort of the passenger compartment.

Japanese Patent Application Laid-Open No. 11-219641

An object of the present invention is to provide a vehicle turn signal device capable of suppressing the occurrence of a canceling pin hitting sound when steering a steering wheel in a turn signal direction.

According to the first aspect of the present invention, for the vehicle, the canceling cam is returned to the neutral position by returning the steering wheel to the cancel direction of the turn signal, and the movable plate is returned to the neutral position. A turn signal switch device, wherein the cancel cam is rotatable with rotation of a steering shaft, the movable plate is swingably supported by a fixed member located near the cancel cam, and the movable plate is operated. An operation lever, a switch operated by the movable plate, and the cancel pin supported by the fixed member and the movable plate so as to be swingable and capable of moving back and forth toward the cancel cam. The cancel pin has a sliding contact surface that comes into sliding contact with the fixed member, and a return. By pulling, the direction toward the cancel cam, the sliding surface is the fixing member for a vehicle turn signal switch device is biased in both the sliding contact direction is provided.

As described in claim 2, the return spring is preferably constituted by a coil spring.

According to a third aspect of the present invention, preferably, both end portions of the coil spring are hung on two latching portions located on both sides with respect to a swing center line of the cancel pin, and the center of the coil spring is provided. A spring hooking portion of the cancel pin, and the spring hooking portion is separated from the fixing member along the swing center line of the cancel pin with respect to the hooking position of the two hooking portions. Is located.

As described in claim 4, preferably, the sliding contact surface has a recess for storing grease.

As described in claim 5, preferably, the cancel pin extends from the sliding contact surface toward the fixing member, and is supported by a guide groove of the fixing member, and the sliding contact surface. Is provided with a second shaft extending from the opposite anti-sliding contact surface toward the movable plate and supported by a cam groove of the movable plate. The first shaft and the second shaft are provided with the cancel pin. The guide groove is a groove that supports the first shaft while guiding the first shaft so that the cancel pin can swing and can be advanced and retracted toward the cancel cam. The groove is a guide groove that guides the second shaft so that the cancel pin is displaced with respect to the cancel cam when the movable plate swings, and the first shaft is supported by the guide groove. Support Is, the sliding contact surface with respect to the fixed member is set in sliding contact state is possible length to maintain throughout.

In the invention according to claim 1, the slidable contact surface of the cancel pin can be slidably contacted with the fixed member. In addition, the cancel pin is urged by the return spring in both the direction toward the cancel cam and the direction in which the sliding contact surface slides on the fixed member. The slidable contact surface receiving the urging force of the return spring can always slidably contact the fixed member. For this reason, the frictional resistance when the cancel pin is displaced is large because the sliding contact surface is in sliding contact with the fixed member.

When the steering wheel is steered in the turn signal direction, the cancel pin is pushed by the cancel cam, swings and slightly moves backward (so-called swinging). Thereafter, the cancel pin is displaced again into the rotation locus of the cancel cam by the biasing force of the return spring. At this time, since the frictional resistance between the fixing member and the sliding contact surface is large, the cancel pin is displaced relatively slowly. Therefore, it is possible to suppress as much as possible the occurrence of a hitting sound caused by the cancellation pin hitting (striking) another part. Therefore, the comfort of the passenger compartment can be improved.

In the invention according to claim 2, since the coil spring is adopted as the return spring that biases the cancel pin in both the direction toward the cancel cam and the direction in which the sliding contact surface slides on the fixed member, the return spring The configuration is simple.

In the invention according to claim 3, the spring hooking portion is located away from the fixing member along the swing center line of the cancel pin with respect to the hooking position of the two hooking portions. For this reason, it is possible to easily set the urging force in the direction in which the sliding contact surface is in sliding contact with the fixed member, and as a result, it is possible to easily set the frictional resistance between the fixed member and the sliding contact surface.

In the invention according to claim 4, the sliding contact surface has a recess for storing grease. For this reason, an oil film can be formed over a long period between the fixing member and the sliding contact surface. Therefore, the frictional resistance between the fixed member and the sliding contact surface does not become excessive, and the sliding contact can be made smoothly.

In the invention which concerns on Claim 5, the 1st axis | shaft which has in the slidable contact surface of a cancellation pin is the state in which the slidable contact surface slidably contacts with respect to a fixed member as the support length supported by a guide groove. It is set to a length that can be maintained. When the movable plate swings, the cam groove guides the second shaft so that the cancel pin is displaced with respect to the cancel cam. At this time, a load in the direction perpendicular to the axis from the cam groove to the second shaft, that is, a load in the groove width direction of the guide groove can act. However, when the first shaft is sufficiently supported by the guide groove, the first shaft is restricted from tilting in the groove width direction of the guide groove. As a result, it is possible to maintain a state in which the sliding contact surface is in sliding contact with the fixed member throughout. The frictional resistance between the fixing member and the sliding contact surface is appropriately maintained. Furthermore, when the sliding contact surface has a recess for storing grease, an oil film can be formed over a long period of time between the fixing member and the sliding contact surface.

It is the figure which looked at the turn signal switch device for vehicles provided with the cancellation mechanism concerning the present invention from the steering wheel side. FIG. 2 is an overall view of a neutral state of the turn signal switch device shown in FIG. 1. FIG. 3 is an enlarged view of a cancel mechanism shown in FIG. 2. FIG. 4 is a perspective view of the cancel mechanism shown in FIG. 3. It is the figure which looked at the relationship between the cancellation pin shown in FIG. 4 and a return spring from the front end side of the cancellation pin. It is sectional drawing which showed the support structure of the 1st axis | shaft and 2nd axis | shaft of the cancellation pin shown by FIG. FIG. 5 is a cross-sectional view around a concave portion of the cancel pin shown in FIG. 4. It is the figure which showed the left turn state of the turn signal switch apparatus shown by FIG. FIG. 9 is an enlarged view showing the cancel mechanism shown in FIG. 8.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A vehicle turn signal switch device including a cancel mechanism according to an embodiment will be described.

As shown in FIG. 1, a combination switch unit 13 is disposed in the vicinity of the steering shaft 12 connected to the steering wheel 11 of the vehicle. The combination switch unit 13 is provided on a steering column (not shown). For example, a wiper switch device 15 is provided on the right side and a turn signal switch device 16 is provided on the left side with respect to the common base 14 located in the center. .

The turn signal switch device 16 emits a right turn lighting switch signal when the operation lever 23 at the neutral position Ne is swung in the lifting direction and emits a left turn lighting signal when the swing operation is performed in the push-down direction. The right turn signal (not shown) blinks in response to the right turn lighting signal, and the left turn signal (not shown) blinks in response to the left turn lighting signal. Hereinafter, the turn signal switch device 16 will be described in detail.

As shown in FIGS. 1 and 2, the turn signal switch device 16 operates a fixed member 21 attached to the common base 14, a movable plate 22 supported by the fixed member 21 so as to be swingable, and the movable plate 22. An operation lever 23 and left and

right switches

24L and 24R operated by the movable board 22 are included.

2 and 4, the fixing member 21 includes a case 31 whose top is opened and a detachable lid 32 for closing the upper opening of the case 31. The movable platen 22 is supported by a case 31 and a lid 32 so as to be swingable. The operation lever 23 is attached to the movable platen 22.

1 and 2, a straight line Ne passing through the center Sc of the steering shaft 12 and the swing center Mc of the movable platen 22 is hereinafter referred to as a reference line Ne. The reference line Ne is appropriately referred to as a “neutral position Ne”.

As shown in FIG. 2, when the movable platen 22 is on the reference line Ne, that is, at the neutral position Ne, the

switches

24L and 24R do not emit a lighting switch signal. When the movable platen 22 is swung to the right turn position Ri by the operation lever 23, the right switch 24R issues a right turn lighting switch signal. On the other hand, when the movable panel 22 is swung to the left turn position Le by the operation lever 23, the left switch 24L issues a left turn lighting switch signal. When the movable platen 22 is returned to the neutral position Ne by the operation lever 23, the

switches

24L and 24R do not emit a lighting switch signal.

Such a turn signal switch device 16 includes a cancel mechanism 40. The cancel mechanism 40 includes a cancel cam 41, a cancel pin 42, a guide groove 43, a cam groove 44, a return spring 45, and a cancel plate 46 as main components.

The cancel cam 41 is a member that can rotate as the steering shaft 12 (FIG. 1) rotates. More specifically, the cancel cam 41 is an annular member that is fitted to the steering shaft 12 with its relative rotation being restricted, and a plurality of cam peaks 41a protrude from the outer peripheral surface. The fixing member 21 is located in the vicinity of the cancel cam 41.

As shown in FIGS. 2 to 4, the cancel pin 42 is an elongated member along the reference line Ne, and can swing between the fixed member 21 (particularly, the lid 32 shown in FIG. 4) and the movable platen 22. In addition, it is supported so as to be able to advance and retreat toward the cancel cam 41. As shown in FIGS. 4 to 6, the cancel pin 42 is slidably contacted with the fixed member 21 (particularly the lid 32), and extends from the slidable contact surface 51 toward the fixed member 21 to be fixed. The first shaft 52 supported by the guide groove 43 of the member 21 and the anti-sliding contact surface 53 opposite to the sliding contact surface 51 extend toward the movable platen 22 and are supported by the cam groove 44 of the movable platen 22. A second shaft 54. The first shaft 52 and the second shaft 54 are located on the swing center line Cc of the cancel pin 42. As shown in FIGS. 4 and 7, the sliding contact surface 51 has one or a plurality of recesses 55 for storing grease.

As shown in FIGS. 3 to 6, the guide groove 43 is a linearly elongated groove along the reference line Ne, and is formed in the fixing member 21 (particularly the lid 32). The guide groove 43 supports the first shaft 52 while guiding the first shaft 52 so that the cancel pin 42 can swing and can move forward and backward toward the cancel cam 41. The support length Lg (FIG. 6) at which the first shaft 52 is supported by the guide groove 43 is a length capable of maintaining the state in which the sliding contact surface 51 is in sliding contact with the lid 32 of the fixing member 21 as a whole. Is set. The guide groove 43 may be a long hole that penetrates the lid 32.

As shown in FIGS. 3 and 4, the cam groove 44 is formed on the upper surface of the movable platen 22 so that the cancel pin 42 is displaced with respect to the cancel cam 41 when the movable platen 22 swings. The guide groove guides the second shaft 54. More specifically, the cam groove 44 has a guide convex portion 61 bulging from the groove bottom. When viewed from the direction along the swing center line Cc of the cancel pin 42, the guide convex portion 61 is formed in a substantially isosceles triangular shape having a vertex 62 on the opposite side of the cancel cam 41 on the reference line Ne. And left and right oblique sides (right oblique side portion 63R and left oblique side portion 63L) inclined left and right from the vertex 62.

As shown in FIGS. 3 to 5, the cancel pin 42 is slid by the single return spring 45 in the direction A1 toward the cancel cam 41 and the sliding contact surface 51 on the fixing member 21 (particularly the inner surface of the lid 32). It is urged | biased by both the direction A2 to contact. The return spring 45 is constituted by a coil spring. Both

end portions

45a and 45a of the coil spring 45 (return spring 45) are hooked on two latching

portions

47 and 47 located on both sides with respect to the swing center line Cc of the cancel pin 42. The central portion 45 b of the coil spring 45 is hung on the spring hooking portion 56 of the cancel pin 42.

The cancel pin 42 has a swing front end portion 57 that is directed to the cancel cam 41 with respect to the swing center line Cc, and a swing rear end portion 58 that extends to the opposite side of the swing front end portion 57.

The spring hook 56 is formed by a lateral groove formed in the swing rear end 58. The lateral groove has a bottom surface on the swing tip portion 57 side and is open in the groove longitudinal direction (toward the two latching portions 47 and 47). Further, as shown in FIG. 5, the spring hooking portion 56 has a lid 32 of the fixing member 21 along the swing center line Cc of the cancel pin 42 with respect to the hooking positions of the two hooking

portions

47, 47. Located away from. That is, the return spring 45 is positioned such that the central portion 45b is farther from the inner surface of the lid 32 than the both

end portions

45a and 45a. For this reason, the cancel pin 42 is urged in the direction A <b> 2 slidably contacting the inner surface of the lid 32.

2 and 3, the cancel plate 46 is located near the swing center Mc of the movable plate 22 with respect to the swing center line Cc of the cancel pin 42 and is provided on the movable plate 22. More specifically, the cancel plate 46 is formed in a substantially U shape with the cancel cam 41 side opened on the reference line Ne when viewed from the direction along the swing center line Cc of the cancel pin 42. The left and

right arms

46a, 46a of the cancel plate 46 are located on the left and right side surfaces away from the swing rear end portion 58 of the cancel pin 42.

Next, the operation of the cancel mechanism 40 will be described.
As shown in FIGS. 2 to 4, when the movable platen 22 is located at the neutral position Ne, the second shaft 54 (FIG. 4) of the cancel pin 42 is located at the apex 62 of the guide convex portion 61. Yes. For this reason, the swing tip portion 57 of the cancel pin 42 is located outside the rotation locus RL of the cancel cam 41. The movable platen 22 maintains the neutral position Ne by a click mechanism (not shown). The click mechanism is elastically engaged between the movable platen 22 and the case 31 and is released by a predetermined small load.

Thereafter, as shown in FIGS. 8 and 9, for example, when the movable platen 22 is swung to the left turn position Le by the operation lever 23, the second shaft 54 (FIG. 4) of the cancel pin 42 is connected to the guide convex portion 61. Deviates from the vertex 62. For this reason, the swing tip 57 of the cancel pin 42 is displaced into the rotation locus RL of the cancel cam 41 by the urging force of the return spring 45. At this time, the first shaft 52 is displaced to the groove end 43a closer to the cancel cam 41 of the guide groove 43 and is stopped.

Thereafter, when the steering wheel 11 (FIG. 1) is steered in the turn signal direction R1, since the swing tip 57 is pushed by the cancel cam 41, the cancel pin 42 swings and slightly moves backward (so-called swinging). .) Thereafter, the cancel pin 42 is displaced again into the rotation locus RL of the cancel cam 41 by the urging force of the return spring 45. Due to the urging force at this time, the first shaft 52 tries to hit the groove end 43a closer to the cancel cam 41 in the guide groove 43 (attempts to hit it).

On the other hand, as shown in FIG. 4, the slidable contact surface 51 of the cancel pin 42 can slidably contact the lid 32 of the fixing member 21. In addition, the cancel pin 42 is urged by the return spring 45 in both the direction A1 toward the cancel cam 41 and the direction A2 in which the sliding contact surface 51 is in sliding contact with the lid 32. The slidable contact surface 51 receiving the urging force of the return spring 45 can always slidably contact the lid 32. For this reason, the frictional resistance when the cancel pin 42 is displaced is large as the sliding contact surface 51 is in sliding contact with the lid 32.

Since the frictional resistance between the lid 32 and the sliding contact surface 51 is large, the cancel pin 42 is displaced relatively slowly. Therefore, it is possible to suppress as much as possible the occurrence of a hitting sound caused by the cancel pin 42 hitting (hit) another part. Therefore, the comfort of the passenger compartment can be improved. In addition, the single return spring 45 can urge both the direction A1 toward the cancel cam 41 and the direction A2 in which the sliding contact surface 51 slides on the lid 32. For this reason, generation | occurrence | production of a striking sound can be suppressed with the simple structure with few parts of the cancellation mechanism 40. FIG.

Thereafter, as shown in FIGS. 8 and 9, the cancel pin 42 is returned to the neutral position Ne by the cancel cam 41 by returning the steering wheel 11 to the cancel direction R2 of the turn signal. Therefore, when the swing rear end portion 58 of the cancel pin 42 pushes one arm 46a of the cancel plate 46, the movable platen 22 returns to the neutral position Ne shown in FIG.

Thus, the cancel mechanism 40 returns the cancel wheel 42 to the neutral position Ne by the cancel cam 41 by returning the steering wheel 11 to the cancel direction R2 of the turn signal, and returns the movable plate 22 to the neutral position Ne. Is possible.

The above configuration is summarized as follows.
Since the coil spring is adopted as the return spring 45 that urges both the direction A1 in which the cancel pin 42 faces the cancel cam 41 and the direction A2 in which the sliding contact surface 51 slides on the lid 32, the return spring 45 The configuration is simple.

Further, as shown in FIG. 5, the spring hooking portion 56 is fixed to the fixing member 21 along the swing center line Cc of the cancel pin 42 with respect to the hooking

positions

47 a and 47 a of the two hooking

portions

47 and 47. It is located away from the lid 32. For this reason, it is possible to easily set the urging force in the direction A2 in which the sliding contact surface 51 is in sliding contact with the inner surface of the lid 32. As a result, the frictional resistance between the inner surface of the lid 32 and the sliding contact surface 51 can be easily set. Can be set.

Furthermore, as shown in FIGS. 4 and 7, the sliding contact surface 51 has a recess 55 for storing grease. For this reason, an oil film can be formed over a long period between the inner surface of the lid 32 and the sliding contact surface 51. Therefore, the frictional resistance between the inner surface of the lid 32 and the sliding contact surface 51 does not become excessive, and the sliding contact can be made smoothly.

Furthermore, as shown in FIGS. 3, 4, and 6, the support length Lg supported by the guide groove 43 on the first shaft 52 provided on the sliding contact surface 51 of the cancel pin 42 is a lid. The length is set such that the slidable contact surface 51 can be kept in slidable contact with the entire surface. When the movable platen 22 swings, the cam groove 44 guides the second shaft 54 so that the cancel pin 42 is displaced with respect to the cancel cam 41. At this time, a load in the direction perpendicular to the axis from the cam groove 44 to the second shaft 54, that is, a load in the groove width direction of the guide groove 43 can act.

However, when the first shaft 52 is sufficiently supported by the guide groove 43, the first shaft 52 is restricted from being inclined in the groove width direction of the guide groove 43. As a result, it is possible to maintain a state in which the sliding contact surface 51 is in sliding contact with the inner surface of the lid 32 throughout. The frictional resistance between the inner surface of the lid 32 and the sliding contact surface 51 is appropriately maintained. Furthermore, since the sliding contact surface 51 has a recess 55 (FIG. 7) for storing grease, an oil film can be formed between the inner surface of the lid 32 and the sliding contact surface 51 over a long period of time. .

In the present invention, the fixing member 21 is not limited to the combined structure of the case 31 and the lid 32, and can be constituted by a single member, for example. In addition, the sliding contact surface 51 of the cancel pin 42 is not limited to the configuration in sliding contact with the inner surface of the lid 32, and may be configured to be in sliding contact with the inner surface of the case 31, for example.

Furthermore, the return spring 45 is not limited to a single one but may be a plurality. That is, the cancel pin 42 is provided by one or a plurality of return springs in both the direction A1 toward the cancel cam 41 and the direction A2 in which the sliding contact surface 51 is in sliding contact with the fixing member 21 (particularly the inner surface of the lid 32). Any configuration that is energized may be used.

For example, it is possible to change one coil spring 45 (return spring 45) to two “tensile coil springs”. In that case, a member corresponding to the two latching portions 47, 47 (in other words, 2) is provided at the swing rear end portion 58 of the cancel pin 42 shown in FIGS. Number of replacement members) may be provided. Then, two tension coil springs are hung between the two replacement members provided at the swing rear end portion 58 and the two latching

portions

47, 47 provided on the fixing member 21. Each of the two replacement members has a “spring hooking position” that is fixed to the fixing member 21 along the swing center line Cc of the cancel pin 42 with respect to the hooking

positions

47 a and 47 a of the two hooking

portions

47 and 47. It is located away from the lid 32.

With such a configuration, two cancel pins 42 are provided in both the direction A1 toward the cancel cam 41 and the direction A2 in which the sliding contact surface 51 is in sliding contact with the fixing member 21 (particularly the inner surface of the lid 32). It is energized by the “pulling spring”.

The cancel mechanism 40 of the present invention is suitable for use in various vehicle turn signal switch devices.

DESCRIPTION OF SYMBOLS 11 ... Steering wheel, 12 ... Steering shaft, 16 ... Turn signal switch apparatus for vehicles, 21 ... Fixed member, 22 ... Movable board, 23 ... Operation lever, 24L, 24R ... Switch, 31 ... Case (a part of fixed member) 32 ... Lid (part of the fixing member), 40 ... Cancel mechanism, 41 ... Cancel cam, 42 ... Cancel pin, 43 ... Guide groove, 43a ... End of the guide groove closer to the cancel cam, 44 ... Cam groove, 45 ... Return spring (coil spring), 45a ... Both ends of the coil spring, 45b ... Center portion of the coil spring, 47 ... Hook, 47a ... Hook position of the hanger, 51 ... Sliding surface, 52 ... First Shaft 53: Anti-sliding contact surface 54 ... Second shaft 55 ... Recessed portion 56 ... Spring hook portion 57 ... Swing tip portion A1 ... Direction toward cancel cam, A2 Sliding surface sliding contact direction to the fixing member, Cc ... cancel pin of the swing center line, Lg ... supporting length first shaft is supported by the guide groove, Ne ... neutral position, RL ... rotational locus of the canceling cam.

Claims

A vehicle turn signal switch device in which a cancel pin is returned to a neutral position by a cancel cam by returning the steering wheel to a turn signal cancel direction, and the movable plate is returned to the neutral position.
The cancel cam rotatable with the rotation of the steering shaft;
The movable plate supported to be swingable by a fixed member located in the vicinity of the cancel cam;
An operating lever for operating the movable board;
A switch operated by the movable platen;
The cancel pin supported by the fixed member and the movable plate so as to be swingable and capable of moving back and forth toward the cancel cam;
Has
The cancel pin has a sliding contact surface that comes into sliding contact with the fixed member, and is urged by a return spring in both a direction toward the cancel cam and a direction in which the sliding contact surface comes into sliding contact with the fixed member. A turn signal switch device for a vehicle.
The vehicle turn signal switch device according to claim 1, wherein the return spring is configured by a coil spring.
Both end portions of the coil spring are hung on two hooking portions located on both sides with respect to the swing center line of the cancel pin, and the central portion of the coil spring is on the spring hook portion of the cancel pin. The hooking and the spring hooking portion are located away from the fixing member along the swing center line of the cancel pin with respect to the hooking position of the two hooking portions. Turn signal switch device for vehicles.
2. The vehicle turn signal switch device according to claim 1, wherein the sliding contact surface has a recess for storing grease.
The cancel pin extends from the slidable contact surface toward the fixed member, and is movable from a first shaft supported by a guide groove of the fixed member and an anti-slidable contact surface opposite to the slidable contact surface. A second shaft extending toward the board and supported by the cam groove of the movable board,
The first axis and the second axis are located on a swing center line of the cancel pin,
The guide groove is a groove that supports the first shaft while guiding the first shaft so that the cancel pin can swing and can move forward and backward toward the cancel cam.
The cam groove is a guide groove that guides the second shaft so that the cancel pin is displaced with respect to the cancel cam when the movable plate swings,
The support length by which the first shaft is supported by the guide groove is set to a length capable of maintaining a state in which the sliding contact surface is in sliding contact with the fixing member throughout. The vehicle turn signal switch device according to any one of claims 1 to 4.